Depending on the price but Id stay away. You can get better machines for around 1500. It just really depends on your budget. The 1st machine we ever got was a 4GPM dewalt from craigslist and it worked great for the 400 we bought it for.

Yes they work but you can buy the cheap ones or the really high end ones. The high-end ones will last longer and they are very nice however you can buy the cheap ones and replace them 5 times for the cost of a nice one. Here is a link and these are the ones we use.
https://amzn.to/2xN47Xb

Hey Guys We are making a series on our channel on how to build a rig the right way the 1st time. Our company is pumping out a ton of quality content so make sure you check it out and subscribe.
Here is the link enjoy! 1 of many to come this is only part 1

"We have a great option for you that we will have to come back every 2 years for, and charge you, as opposed to cleaning it once with an SH based solution that will keep it clean for 5-10 years!"
LOL gimmick to say the least.

Yup, it is going to be a beast! Almost done, just have the wiring to get done, add the roof and throw the ladders/surface cleaner on there and boom, done! Going to get the proportioner primed, so we will see how involved that is lol.